Many police services in Ontario have professional standards branches, sections, bureaus or units that work to promote professionalism and integrity in their police service. Professional standards units investigate conduct complaints filed under Part V of the Police Services Act
and complaints about the services and policies of the police service that are referred to them by the OIPRD.
Professional standards units also conduct internal investigations ordered by the police chief into allegations of officer misconduct or criminal activity, and handle local complaints from members of the public made at the police station. Professional standards officers may also facilitate complaint resolution for local complaints
The OIPRD works cooperatively with both complainants and police to investigate and resolve complaints.